I ran across a problem I cannot figure out how to solve. I have to consolidate data from 4 temporary tables to one permanent. I am using INNER JOIN for three temp tables and LEFT OUTER JOIN for fourth one. The problem is in data. Some records have duplicate IDs. So when I perform INSERT INTO instead of two records in perm table I got four. This happened so far twice but there is no guarantee that it would not happen again. Any suggestions how to solve it?
Besides backup, any IT division should have a disaster recovery plan. You will find a few tips below relating to the development of such a plan and to what issues one should pay special attention in the course of backup planning.
SQL Server Integration Services can read XML files, that’s known by every BI developer. (If you didn’t, don’t worry, I’m aiming this article at newcomers as well.)
But how far can you go? When does the XML Source component become …
Using examples as well as descriptions, and references to Books Online, show the documentation available for datatypes, explain the available data types and show how data can be passed into and out of variables.